Grain-separator.



A. S. REED.

GRAIN SEPARATOR.

APPLICATION FILED MAR.16, 1910.

1,009,440; Patented N0v.21,.191-1.

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UNITED STATES PATENT OFFICE.

ALVA S. REED, 0]? BIG SPRINGS TOWNSHIP, UNION COUNTY, SOUTH DAKOTA.

GRAIN-SEPARATOR.

To all whom it may concern.-

Be it known that I, ALVA S. REED, a citizen of the United States, residing at Big Springs township, in the county of Union and State of South Dakota, have invented ,a certain new and useful Grain-Separator,

of which the following is a specification.

The object of my invention is to provide a grain separator of simple, durable and inexpensive construction in which all oscillating motion is dispensed with and the parts that serve to separate the grain from the .straw all move in straight linesin one direction only to thereby avoid strains and wear on the machinery and frame.

A further object is to provide a machine of this kind in which the parts that project upwardly may be easily and conveniently in the construction, arrangement and combination of the various parts of the device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:-

' Figure 1 shows a vertical, central, sectional view of a grain separator embodying The dotted lines show the position of the folding top when at its my invention.

lower limit of movement, and Fig. 2 shows a detail, sectional view on the line 2-2 of chute member 15. This slat conveyer 24 Fig. 1.

Referring to the accompanying drawings, I have used the reference numeral 10 to in-f dicate the main separator frame having therein a threshing cylinder 11, a concave 12 and a beater 13 all of ordinary construction and designed to operate in the ordi nary manner. Extending from a point adjacent to the delivery end of the concave forty-five degrees. th1s conveyer chute is stationary and is in-. dicated by the numeral 14:, and the upper chute. .is lowered the canvas shield will fold upon the top 18 as shown by dotted lines in Fig. 1.

Specification of Letters Patent. Patented Nov, 21 1911,

Application filed March 16, 1910. Serial No. 549,728.

is a conveyer frame substantially rectangular in cross section and extended upwardly and toward the delivery end of the grain separator at an angle of approximately The lower portion of portion 15 is connected with the stationary portion 1 .1 by the hinge 16 so that it may stand in position in line with the lower portion, or it may fold downwardly to the position indicated by dotted lines in Fig. 1. I have provided a rope or cable 17 connected to the folding upper portion for the purpose of supporting it in its elevated position.

The numeral 18 indicates the stationary top of the separating machine near the delivery end thereof. Connected. to this top is a wind shield 19'preferably' made of canvas or light material and having one edge connected with the stationary top 18 and the other edge connected with the top of the folding conveyer chute member 15. Fixed connected also to this cross piece to hold it spaced apart from the end ofthe conveyer When the folding conveyer chute In the bottom of the conveyer chute member 15, a portion of the solid bottom near the upper end is removed and a series of longitudinally arranged rods 22 is placed therein for purposes hereinafter made clear.

Supported below the bottom of the conveyer chute member 15 is a grain return board 23 supported by the brackets 24 that are connected with the sides of the folding to the rods 26 and may drop through them to the sieves hereinafter described.

Arranged within the grain separator in position to receive the straw that drops from the delivery end of the slat conveyer 24: is a second grain separating conveyer comprising a solid stationary bottom 28, inclined upwardly and toward the delivery end of the separator at an angle of approximately forty-five degrees. At the upper end thereof is a series of rods 29 similar to the rods 22 before described. A slat conveyer 30 of ordinary construction is arranged to travel with its upper portion on top of the part 28 and its lower portion below it, said upper portion being arranged to move in a direction toward the delivery end of the separator. Below the lower portion of the said slat conveyer is a grain pan 81 designed to conduct the grain that drops through the rods 29 to a point of discharge over the central portion of the screens.

Arranged below the rods 26 is a series of screens 32 of ordinary construction, the two upper screens being designed to discharge into a conveyer spout 83 of ordinary construction and the lower screen being arranged to discharge into a conveyer spout 34 also of ordinary construction. A fan 35' is also provided to discharge between said; screens in the ordinary manner.

In practical operation and assuming the parts to be in the position shown in Fig. 1, and assuming further that bundles of grain? are fed between the cylinder and concave, the grain will be loosened from the straw and the greater portion of the grain Willi pass through the concave and be dis g charged on top of the grain board 25. This; grain will be carried by the conveyer 27 toj the screens and any chaff that may fall will; be carried by the slats over the bottom 25; and over the rods 26 and will be discharged at the delivery end of the machine. The; measured portion of the straw together with part of the grain will be delivered by thef cylinder and concave to the conveyer chute 14. The straw will be carried upwardly by; said chute and during said upward movement some of the grain will work through; the straw and be carried by the conveyer. slats 24 up to the point where the rods 221 are spaced in the bottom of the conveyer chute. These grains will then drop through said rods to the grain return board 23 which will discharge them on top of the grain board 25. The straw and chaif will however be carried on over the rods 22 to the delivery end of the conveyer chute 15. Then the layer of straw and chaff will be deflected by the canvas shield 19 so that it will drop downwardly upon the slat conveyer 30. During this downward movement the straw will become loosened and untangled and will turn over in such a manner that the grain will readily pass through it and lie upon the bottom 28 so that as the slats of the conveyer 30 move upwardly the grain will be under the straw and will be passed through the rods 29, and conducted by the grain pan 81 to the sieves as before described. It is obvious that it is desirable to have the grain drop a comparatively long distance from the first conveyer chute because the longer this distance is the more thorough will be the separation. It is also obvious that there is a limit to the practical height of the separator. For this reason, 1

have provided a folding section at the up-- per end of the first conveyer chute so that when not in use this part may fold downwardly thus making a separator frame of minimum height.

One of the material advantages of my improved separator is that all shaking movement is dispensed with and the only movement is the continuous travel of the several slat conveyers which obviously can be done with a minimum of applied power and such motion will not tend to shake the separator frame. Furthermore, the construction of my improvement is very simple and the entire separator can be manufactured at a comparatively slight cost.

I claim as my invention:

1. In a grain separator, a stationary delivery chute extending upwardly and rearwardly in said separator, a hinged member on the upper end of said stationary chute, designed to fold downwardly, means for se curing said hinged member in its raised position, a hood of flexible material secured to said hinged member and to the frame of the separator in the rear thereof, and means for holding said hood spaced apart from the point of delivery from said hinged member, when the latter is in its raised position.

2. In a grain separator, a stationary conveyer chute extending upwardly and rearwardly in said separator, a hinged conveyer chute at the upper end of said stationary chute extending above the frame when in its raised position and designed to fold clownwardly, means for holding said hinged con veyer chute in its raised position, arms extending upwardly and rearwardly from the upper end of said hinged conveyor chute ble hood being designed to fold downwardly when the same is in its raised position, a when the hinged conveyer chute is lowered. 10 cross member between the outer ends of said Des Moines, Iowa, Jan. 21, 1910.

arms, a flexible hood secured to the upper part of the upper end of said hinged ohute ALVA REED and extending over said cross member and Witnesses:

then downwardly to the separator frame in A. O. OFSTAD,

the rear of the delivery chutes, said fiexi- R. O. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

